摘要
在岩心、电性资料基础上，从单井相入手，识别出多种沉积特征，认为勒3区块七克台组属扇三角洲前缘沉积，并可分为4个微相：水下分流河道、水下分流河道间、水下溢岸及席状砂，并分析了沉积演化，建立了沉积相模式。水下分流河道砂体最为发育，孔隙度和渗透率也较好，是主要的储集砂体，而席状砂孔渗较差，连片性不好，是次要的储集砂体。
According to the rock core description,on the basis of the integrated analysis of rock core,electric characteristics,sedimentary structures,petrofabric and rock facies,the types and the characteristics of the sedimentary microfacies in Qiketai formation were studied.It indicated that Qiketai belongs to the fan delta facies,which can be further divided into two subfacies including the front delta and shore-shallow lake subfacies and four microfacies including underwater distributary channel,underwater distributary interbasin,underwater overflow deposit and delta front sheet sand microfacies.The distributary channel microfaces is the favorable reservoir,and delta front sheet sand is the secondary one.
出处
《长江大学学报（自科版）（上旬）》
CAS
2009年第01X期188-190,共3页
JOURNAL OF YANGTZE UNIVERSITY (NATURAL SCIENCE EDITION) SCI ＆ ENG
